The registered nurse is discussing care of an infant diagnosed with a patent ductus arteriosus (PDA) with a nursing student. The registered nurse determines that the nursing student needs further teaching regarding a PDA when the student states that which circulatory change is a characteristic of this disorder?
This shunting allows oxygenated and unoxygenated blood to mix.
Blood is shunted to the right side of the heart.
This shunting results in increased pulmonary blood flow.
Blood is shunted to the left side of the heart.
The Correct Answer is D
A. "This shunting allows oxygenated and unoxygenated blood to mix."
Explanation: This statement is correct. In PDA, the shunting of blood between the aorta and pulmonary artery allows oxygenated and unoxygenated blood to mix, leading to decreased oxygen saturation in the systemic circulation.
B. "Blood is shunted to the right side of the heart."
Explanation: This statement is correct. In PDA, blood is shunted from the left side of the heart (aorta) to the right side of the heart (pulmonary artery).
C. "This shunting results in increased pulmonary blood flow."
Explanation: This statement is correct. PDA leads to increased pulmonary blood flow as a result of the shunting of blood from the aorta to the pulmonary artery.
D. "Blood is shunted to the left side of the heart."
Explanation:
A patent ductus arteriosus (PDA) is a congenital heart defect where the ductus arteriosus, a fetal blood vessel that normally closes shortly after birth, remains open. In PDA, blood is shunted from the aorta (left side of the heart) to the pulmonary artery (right side of the heart), resulting in increased pulmonary blood flow. Therefore, the correct statement is that "Blood is shunted to the right side of the heart."
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. 1 cup cooked rice: This exceeds the 1 oz serving size and is more than what the nurse is recommending.
B. Flour tortilla: The size of a flour tortilla can vary, but it often exceeds the 1 oz serving size, so it may provide more than the recommended amount.
C. 1 cup ready-to-eat cereal flakes: The volume of cereal can vary, and 1 cup of cereal may provide more than 1 oz of grains, depending on the type and density of the cereal.
D. 1 slice whole wheat bread: A standard slice of whole wheat bread typically provides around 1 oz of grains, making it an appropriate choice for the recommended serving size.
Correct Answer is ["C","D","E"]
Explanation
A. Set the water heater at 65.6° C (150° F):
The recommended temperature for a water heater is around 49°C (120°F) to prevent burns. Setting it at 65.6°C (150°F) can lead to scald injuries.
B. Install accordion style gates: Accordion-style gates are not recommended because they can pose a strangulation risk. The safer option is to use gates with vertical or horizontal slats that are spaced closer together.
C. Fit the mattress so that it is snug against the sides of the crib: A snug-fitting mattress prevents gaps where the baby could get trapped or injured.
D. Tie plastic bags in knots before discarding them:
This prevents accidental suffocation or choking hazards that can occur if an infant gets hold of a plastic bag.
E. Serve food in small, non-circular pieces:Serving food in small, non-circular pieces reduces the risk of choking. Infants should be given age-appropriate foods to minimize the risk of choking, and cutting food into small, easy-to-manage pieces is recommended.
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